Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT (Schedule of Long-Term Debt) (Details)

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LONG-TERM DEBT (Schedule of Long-Term Debt) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Total $ 3,403,267 $ 2,909,879
Less unamortized discounts and debt issuance costs (94,210) (94,859)
Total long-term debt, net of unamortized discounts and debt issuance costs 3,309,057 2,815,020
Less: current portion 37,795 82,142
Total long-term debt, net 3,271,262 2,732,878
Senior Secured Credit Facility Term loan A [Member]    
Debt Instrument [Line Items]    
Total 0 156,750
Senior Secured Credit Facility Term loan B [Member]    
Debt Instrument [Line Items]    
Total 947,625 953,148
4.75% Senior Notes Due 2027 [Member]    
Debt Instrument [Line Items]    
Total 950,000 0
4.875% Senior Notes Due 2024 [Member]    
Debt Instrument [Line Items]    
Total 575,000 575,000
5.625% Senior Notes Due 2026 [Member]    
Debt Instrument [Line Items]    
Total 300,000 300,000
5.375% Senior Notes due 2022 [Member]    
Debt Instrument [Line Items]    
Total 0 250,000
2.5% Convertible Senior Notes Due 2023 [Member]    
Debt Instrument [Line Items]    
Total 550,000 550,000
2.5% Convertible Senior Notes due 2019 [Member]    
Debt Instrument [Line Items]    
Total 0 28,673
Other Long Term Debt [Member]    
Debt Instrument [Line Items]    
Total $ 80,642 $ 96,308